Cam Sensor & Ignition module are the easy ones to replace. The
cranksensor is much more difficult for the average guy. The harmonic
balancer has to be removed to get the crank sensor. Then you need some
special adjusting tool to line up the crank sensor when you install it.
Cam sensor is held in by one bolt and is in the timing cover to the left
of the water pump. There is a magnet pressed into the timing gear which
send impulse signals to the cam sensor. The magnet itself could be the
problem. Thet sometimes fall out of the timing gear. Replacing the
magent requires pulling the timing cover off and everything infront of
it. Remove the cam senor & bump the engine a few times to line the
magnet up with the hole in the timing cover, then you need a mirror &
flashlight to view the magnet.
Ignition module is under the coil pack - very simple to R & R.
A mechanic with a tech II scanner should be able to pinpoint the problem
1991 Pontiac Bonneville LE
3800 V6 ( C ), Black/Slate Grey
~~~The Former Fleet ~~~
89 Cavalier Z 24 convertible
78 Holiday 88 coupe
68 LeSabre convertible
73 Impala sedan